EP3469169B1 - Outil de nettoyage d'une piscine, notamment en milieu radioactif, comprenant une cuve - Google Patents

Outil de nettoyage d'une piscine, notamment en milieu radioactif, comprenant une cuve Download PDF

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Publication number
EP3469169B1
EP3469169B1 EP17745413.9A EP17745413A EP3469169B1 EP 3469169 B1 EP3469169 B1 EP 3469169B1 EP 17745413 A EP17745413 A EP 17745413A EP 3469169 B1 EP3469169 B1 EP 3469169B1
Authority
EP
European Patent Office
Prior art keywords
tank
pool
pump
opening
cleaning tool
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP17745413.9A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3469169A1 (fr
Inventor
Thierry BLANC
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Orano DS Demantelement et Services SA
Original Assignee
Orano DS Demantelement et Services SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Orano DS Demantelement et Services SA filed Critical Orano DS Demantelement et Services SA
Publication of EP3469169A1 publication Critical patent/EP3469169A1/fr
Application granted granted Critical
Publication of EP3469169B1 publication Critical patent/EP3469169B1/fr
Active legal-status Critical Current
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H4/00—Swimming or splash baths or pools
    • E04H4/14—Parts, details or accessories not otherwise provided for
    • E04H4/16—Parts, details or accessories not otherwise provided for specially adapted for cleaning
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
    • G21F9/04—Treating liquids
    • G21F9/06—Processing
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
    • G21F9/04—Treating liquids
    • G21F9/20—Disposal of liquid waste
    • G21F9/22—Disposal of liquid waste by storage in a tank or other container

Definitions

  • the invention relates to a tool for cleaning a swimming pool in a radioactive medium.
  • the cleaning tool is capable of being at least partially immersed in the pool.
  • Cleaning tools of known structure for a storage pool for radioactive materials, in particular for nuclear fuel assemblies comprise a frame, a suction device and a filtration device located downstream of the suction device.
  • the suction device and the filtration device are mounted on the chassis. They are used to clean the water in the pool and / or to recover bodies that lie at the bottom of the pool.
  • Such cleaning tools are quite difficult to move and install in the pool.
  • the maintenance operations of these cleaning tools are often difficult.
  • they are likely to be contaminated by the radioactivity of elements, parts or bodies, in particular resulting from handling or maintenance operations which may have dropped or been deposited at the bottom of the swimming pool.
  • WO 2013/030005 and WO 2015/040248 each discloses a tool for cleaning a swimming pool in a radioactive medium, of known structure.
  • Other pool cleaning tools are disclosed in the documents EP1191166 and FR2742351 .
  • the invention aims to at least partially solve the problems encountered in the solutions of the prior art.
  • the invention relates to a tool for cleaning a swimming pool in a radioactive medium.
  • the cleaning tool includes a liquid filtration device and at least one pump.
  • the tool comprises a tank which has a first opening, a second opening, a liquid inlet from the swimming pool and a liquid outlet.
  • the first opening is intended to at least partially introduce the pump therein, and to at least partially house the pump in the tank.
  • the second opening separate from the first opening, is intended to at least partially introduce the filtration device therein, and to at least partially house the filtration device in the tank.
  • the liquid inlet opens into the second opening, the filtration device being located between the inlet and the pump to fluidly connect the liquid inlet to the pump.
  • the tool further includes a cover configured to close the first opening, and a discharge conduit which is fluidly connected to the outlet of the pump and to the outlet of the liquid.
  • the discharge conduit passes through the cover.
  • the pump and the discharge pipe are rigidly secured to the cover.
  • the cleaning tool is configured to draw liquid from the pool from the inlet, then through the filtration device, before passing it through at least one pump.
  • the risks of contaminating the pump with radioactive elements, particles, parts or bodies, are reduced, since the filtration device is intended to retain these elements before they reach at least one pump. .
  • the filtration device is located immediately downstream of the liquid inlet, which limits contamination of the tank and the pump.
  • the filtration device and the at least one pump are accessible independently of one another, which facilitates maintenance operations.
  • the pumping unit which includes the pump, the cover of the first opening and the delivery conduit, can be moved / removed in one piece from the tank, which in particular facilitates maintenance operations.
  • the invention may optionally include one or more of the following characteristics, whether or not combined.
  • the pump is fixed to the tank, and the filtration device is fixed to the tank.
  • the tank comprises at least one cover intended to close the second opening and a system for closing the cover.
  • the closure system of the cover comprises a lever and two rods of jacks each connected on the one hand to the tank and on the other hand to the lever, for tilting the cover relative to the tank.
  • the cover of the second opening can be devoid of screws or rivets to close it, which facilitates its opening when the tool is at the bottom of the pool.
  • the cleaning tool comprises a valve configured to close the delivery duct.
  • the valve is located opposite the pump relative to the cover of the first opening.
  • the cleaning tool comprises a second pump housed in the tank while being introduced into a third opening distinct from the first opening, the first opening and the third opening being located on either side of the second introduction opening. of the filtration device, the filtration device being housed in the tank between the pumps in a longitudinal direction of the tank.
  • the cleaning tool includes a drain valve located outside the tank and configured to drain the tank.
  • the drain valve is then easily accessible.
  • the invention also relates to a swimming pool cleaning device, in a radioactive medium.
  • the apparatus comprises a cleaning tool as defined above, and a control and / or supply unit configured to control the at least one pump and / or electrically supply the pump, from outside the pool when the cleaning tool is at the bottom of the pool.
  • the cleaning device comprises an inlet pipe fluidly connected to the inlet of the cleaning tool, the inlet pipe being configured to suck the liquid on the surface of the pool or at the bottom of the pool.
  • the cleaning tool then makes it possible at the same time to clean the liquid of the swimming pool, to suck the radioactive elements resting at the bottom of the swimming pool, and to suck those which float on the surface of the swimming pool, for example particles or mosses.
  • the inlet comprises at least one inlet tube
  • the apparatus comprising an adapter end piece which fluidly connects the inlet pipe to the inlet tube, the adapter end piece comprising a gripping lug and a frustoconical surface configured to insert the tip into the inlet tube.
  • the invention also relates to a method of cleaning a swimming pool using a cleaning tool as defined above, and / or a cleaning device as defined above.
  • the cleaning process includes a step of immersing the cleaning tool in the swimming pool, the tank being previously filled with a first liquid having less or being free of contaminants for the pump.
  • the liquid initially present in the tank is then evacuated from the tank, which causes a suction of water from the inlet pipe and the cleaning of this water.
  • the invention relates to a method of remote connection of an inlet pipe to an inlet pipe of a cleaning apparatus as defined above.
  • the method comprises a step of gripping the adapter tip by its ear from outside the pool, and a step of inserting the adapter tip into the inlet tube from outside the pool.
  • the inlet pipe can then be changed, while the tank remains at the bottom of the pool, which limits the risks of operator exposure to radiation and radioactive contamination.
  • the Figures 1 and 2 represent a cleaning tool 2 of a swimming pool 10 for the storage of radioactive materials.
  • the swimming pool 10 comprises two opposite lateral edges 11, 13 and a bottom 12 between the lateral edges 11, 13.
  • the swimming pool 10 contains liquid, typically water.
  • Radioactive elements such as suspended radioactive particles, floating elements, or bodies resting on the bottom 12 of the pool are liable to pollute the pool 10.
  • the cleaning tool 2 comprises a tank 5, a support 20 of the tank 5, a filtration device 3, a first pumping group 40, and a second pumping group 42.
  • the tank 5 at least partially houses the groups of pumping 40, 42 and the filtration device 3.
  • the cleaning tool 2 comprises an inlet 6 for liquid coming from the swimming pool 10 and which opens into the tank 5, an outlet 7 for liquid located downstream of each pumping group 40, 42, as well as a drain valve. 21 to empty the tank 5.
  • upstream and downstream are used with reference to the flow of liquid in the cleaning tool 2, during normal operation of the tool 2.
  • the filtration device 3 is located between the first pumping group 40 and the second pumping group 42, along the longitudinal direction X-X of the tank 5.
  • the tank 5 comprises a cylindrical body 51 which is delimited by an outer wall 50 and which extends in the longitudinal direction XX.
  • the tank 5 comprises a central opening 54 for introducing the filtration device 3, a first opening 52 for the first pumping group 40, and a third opening 56 for the second pumping group 42. These openings 52, 54, 56 open out in the cylindrical body 51.
  • the cylindrical body 51 has the shape of a tank. It rests on two wall elements 22 in the general shape of "I" which form the support 20 and which are supported on the bottom 12 of the pool 10.
  • the tank 5 comprises a lifting handle 23, called the first handle, which is pivotally connected at its two lateral ends opposite the cylindrical body 51.
  • the lifting handle 23 makes it possible to move the cleaning tool 2 and to place it at the bottom 12 of the pool 10.
  • the openings 52, 53, 54 are located in the upper part of the cylindrical body 51, opposite the support 20.
  • the central opening 54 is located between the first opening 52 and the third opening 56, along the longitudinal direction X-X of the tank 5.
  • the central opening 54 is delimited by an annular rim 55 which projects from the cylindrical body 51.
  • the first opening 52 is delimited by an annular rim 53 which projects from the cylindrical body 51.
  • the third opening 56 is delimited by another annular rim 53 which projects from the cylindrical body 51.
  • the third opening 56 is substantially identical to the first opening 52.
  • the central opening 54 has a larger diameter than that of the first opening 52.
  • the central opening 54 is intended to be closed by a cover 61 covering the filtration device 3.
  • the first opening 52 and the third opening 56 are each intended to be closed by a cover 43 to protect the pumps 41 from the pumping groups 40 , 42.
  • the filtration device 3 and the pumping groups 40, 42 serve to clean the water in the swimming pool 10, by removing the radioactive elements, parts or bodies.
  • the filtration device 3 comprises a plurality of filters 31, five of which are visible at the figure 2 . These filters 31 are housed in cells in the central opening 54, being downstream of the liquid inlet 6. The filters 31 are intended to be fully housed in the tank 5.
  • Each of the filters 31 is a cartridge filter which has a handle 33 at its upper end so that it can be easily changed when the cleaning tool 2 is immersed.
  • Some filters 31 can be replaced by plugs (not shown) if the liquid flow rate in the cleaning tool 2 is sufficiently low.
  • the first pumping group 40 comprises a first pump 41, a cover 43, a discharge conduit 44 which is fluidly connected to the outlet of the pump 41, and a discharge valve 45.
  • the first pumping group 40 also includes an ear lifting device 46 which is fixed to the cover 43, projecting from the cover 43.
  • the pump 41 is intended to be fully housed in the tank 5 which protects it from radioactive elements, parts or bodies present in the pool.
  • the cover 43 is configured to be screwed to the rim 53 of the first opening 52, to close the first opening 52.
  • the discharge conduit 44 has a bent shape and it passes through the cover 43. It is connected to a discharge conduit 71.
  • the discharge valve 45 is located between the discharge conduit 44 and the discharge conduit 71. It is configured to open / close the discharge conduit 44.
  • the discharge valve 45 are located outside of the tank 5, which facilitates their remote handling when the cleaning member 2 is immersed.
  • the lifting lug 46 serves to grip the pumping group 40.
  • the first pumping group 40 can be moved all the more easily when it is movable in one piece. The maintenance operations of the first pumping unit 40 are then facilitated.
  • the second pumping group 42 is identical to the first pumping group 40.
  • the discharge pipe 44 of the second pumping unit 42 is also connected to a discharge pipe (not shown) by means of a discharge valve 45.
  • the central opening 54 is closed by a cover 61 which comprises a plate 69, two inlet tubes 60, an opening lever 91, and a lifting handle 63.
  • the plate 69 is supported on the central opening 54 which it comes to close, by being pressed against the annular rim 55 of the opening 54.
  • Each of the inlet tubes 60 is screwed to the plate 69 and opens out through the plate 69.
  • the inlet tubes 60 jointly form the only inlet 6 for liquid in the cleaning tool 2, in normal operation of the tool cleaning 2.
  • the opening lever 91 is pivotally connected to each of its lateral ends to the plate 69.
  • the opening lever 91 is also pivotally connected at each of its lateral ends to the cylindrical body 51 of the tank by a jack 93, 95.
  • the opening lever 91 is intended to be gripped when the cleaning tool 2 is submerged, to give access to the filtration device 3 and change the filters 31. It makes it possible to tilt the cover 61 relative to the tank 5 to give access to central opening 54.
  • Each of the jacks 93, 95 is connected at one of its longitudinal ends to the cylindrical body 31 by a support 96 around which it is pivotally mounted, and to the lever 91 at its other longitudinal end.
  • the lever 91 and the jacks 93, 95 jointly form a system 9 for opening / closing the cover of the central opening 54.
  • the cleaning tool 2 comprises two liquid outlets 7 which are located on either side of the cylindrical body 51, downstream of the pumping groups 40, 42.
  • the outlets 7 are oriented opposite one of the another in the longitudinal direction XX of the tank 5.
  • Each outlet 7 is located at one end of one of the discharge conduits 71, opposite to that to which it is connected to one of the discharge valves 45.
  • the drain valve 21 forms a liquid outlet from the tank 5 during maintenance operations. It is fixed to the cylindrical body 51 near the bottom of the tank 5 and near the support 20. It projects outwards from the cylindrical body 51.
  • the cleaning tool 2 is configured to be electrically connected to a control and supply unit 84 by a cable 85.
  • This control and supply unit 84 is intended to be at the edge and outside of the pool 10, when the cleaning tool 2 is at the bottom of pool 10.
  • Each of the inlet tubes 60 of the cleaning tool 2 can be detachably connected to an inlet pipe 62.
  • Handling tools 80 comprising poles 81, possibly fitted with pliers 82, are used to carry out commissioning, decommissioning or maintenance operations on the cleaning tool 2, when it is immersed.
  • the cleaning tool 2 the supply unit 84, the cable 85, the inlet pipes 62, and the handling tools 80 jointly form a device 1 for cleaning the swimming pool 10.
  • the control and supply unit 84 includes an electrical box intended to be actuated by a human operator away from radiation and radioactive contamination. It is used both to power the cleaning tool 2 electrically and to control the operation of the pumps 41, when the cleaning tool 2 is submerged.
  • the electric cable 85 is water resistant. It is used to supply electrical power to the pumps 41 from the supply unit 84 and to relay the commands from the control unit 84 to the pumps 41.
  • the inlet tubes 60 are generally not connected to any inlet pipe 62, when the cleaning tool 2 sucks and filters the water from the middle of the pool.
  • the inlet pipes 62 serve to draw the water close to the surface of the swimming pool, when they are connected to a surface skimmer 64.
  • the surface skimmer 64 is detachable from the inlet pipes 62.
  • the inlet pipes 62 serve to suction the bottom 12 of the pool, when they are held near the bottom 12 of the pool by the poles 81.
  • the pipes 62 are flexible enough to be moved into the pool 10 by poles 81 relative to the cleaning tool 2.
  • the inlet pipes 62 are maintained and moved by means of a robot usable under water controlled from outside the swimming pool, for example a robot of the "Char Huggy” type which is marketed by the company Cyberia.
  • the inlet pipe 62 can be connected to one of the inlet pipes 60 by an adapter connector 66.
  • the adapter tip 66 shown in the figure 3 , has a frustoconical outer surface 68 which is designed to be inserted into the inlet tube 60, for example by force.
  • the adapter ends 66 allow pipes 62 of different diameters to be connected to the inlet tubes 60.
  • the adapter nozzle 66 also includes a gripping lug 67 which allows it to be manipulated by means of pliers 82, when the cleaning tool 2 is immersed.
  • clamps 82 make it possible to open the cover 43 of each of the pumping groups 40, 42, by unscrewing it from the tank 5, or to remove the cover 61 from the central opening 54 by rotating its system closing 9.
  • the clamps 82 also serve to move the cleaning tool 2 by gripping it by the first handle 23, to move the filters 31 by gripping them by their handle 33, and / or to move the pumping groups 40, 42 by gripping by their respective lifting lugs 46.
  • clamps 82 make it possible to open / close each of the discharge valves 45, and to open / close the drain valve 21.
  • the operation of the cleaning appliance 1 is illustrated more particularly with reference to the figure 4 .
  • the tank 5 is filled with water which has less contaminants for the pumps 41 or which is substantially free of contaminants for the pumps 41, before being immersed in the swimming pool 10.
  • the pumps 41 and the filtration device 3 are in place in the tank 5, the openings 52, 54, 56 are closed by the covers 43, 61, and the drain valve 21 and the discharge valves 45 are closed, when the cleaning tool 2 is placed on the bottom 12 of the pool 10.
  • control unit 84 triggers the operation of each of the pumps 45 and the discharge valves 45 are open.
  • the liquid initially present in the tank 5 is discharged by the pumps 45 according to the flows F 3 , as far as the pool 10 by each of the outlets 7.
  • the filters 31 retain the elements, parts or bodies, radioactive and other contaminants suspended in the pool water, which limits the pollution of the tank 5 and of the pumps 41 and prevents damage to the pumps 41.
  • the water from the swimming pool 10, previously filtered and which has filled the tank 5, is then sucked up by each of the pumps according to the flow F 3 to be conveyed to the outlets 7.
  • the inlet 6 is connected to at least one inlet pipe 62.
  • the inlet pipe 62 is connected at its end opposite to that of the inlet 6 to a surface skimmer 64 which sucks up the water, the particles and potentially radioactive floating elements and other contaminants near the surface of the pool.
  • the inlet pipe 62 is held against the bottom 12 of the pool by a pole 81 to suck up the water, radioactive materials and other contaminants which rest on the bottom of the pool.
  • the tank 5 is drained above the pool by opening the drain valve 21.
  • the cleaning tool 2 thus makes it possible to effectively clean the surface, the medium and the bottom of the swimming pool 10, while more effectively protecting the pumps 41 and the tank 5 from contamination and mechanical damage, by radioactive elements. , particles, parts or bodies, and by facilitating the installation, commissioning and maintenance of the cleaning tool 2.
  • the openings 52, 54, 56 may be placed elsewhere than on the upper part of the tank 5, for example on the side of the tank 5. They may not be aligned.
  • the cleaning tool 2 can comprise a single pumping group 40, or more than two pumping groups 40, 42.
  • the tank 5 can be devoid of lifting handle 23.
  • the cleaning tool 2 can have no discharge duct 71.
  • the outlets 7 are located at the level of the discharge valves 45.
  • the number of inlets 6 and outlets 7 can vary as a function of the flow rate of liquid circulating in the cleaning tool 2.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Cleaning In General (AREA)
  • Filtration Of Liquid (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP17745413.9A 2016-07-04 2017-06-30 Outil de nettoyage d'une piscine, notamment en milieu radioactif, comprenant une cuve Active EP3469169B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1656372A FR3053375A1 (fr) 2016-07-04 2016-07-04 Outil de nettoyage d'une piscine, notamment en milieu radioactif, comprenant une cuve
PCT/FR2017/051775 WO2018007730A1 (fr) 2016-07-04 2017-06-30 Outil de nettoyage d'une piscine, notamment en milieu radioactif, comprenant une cuve

Publications (2)

Publication Number Publication Date
EP3469169A1 EP3469169A1 (fr) 2019-04-17
EP3469169B1 true EP3469169B1 (fr) 2020-04-15

Family

ID=57583161

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17745413.9A Active EP3469169B1 (fr) 2016-07-04 2017-06-30 Outil de nettoyage d'une piscine, notamment en milieu radioactif, comprenant une cuve

Country Status (7)

Country Link
US (1) US10954682B2 (zh)
EP (1) EP3469169B1 (zh)
JP (1) JP6979411B2 (zh)
CN (1) CN109415910B (zh)
ES (1) ES2805432T3 (zh)
FR (1) FR3053375A1 (zh)
WO (1) WO2018007730A1 (zh)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3053375A1 (fr) * 2016-07-04 2018-01-05 Amalis-Assainissement Maintenance Assistance Logistique Sur Installations Et Services Outil de nettoyage d'une piscine, notamment en milieu radioactif, comprenant une cuve
CN110327683B (zh) * 2019-06-21 2021-10-26 中广核工程有限公司 一种核电站水池过滤网及其拆装方法

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Also Published As

Publication number Publication date
ES2805432T3 (es) 2021-02-12
US10954682B2 (en) 2021-03-23
JP6979411B2 (ja) 2021-12-15
CN109415910B (zh) 2020-08-11
CN109415910A (zh) 2019-03-01
FR3053375A1 (fr) 2018-01-05
WO2018007730A1 (fr) 2018-01-11
JP2019526046A (ja) 2019-09-12
EP3469169A1 (fr) 2019-04-17
US20190234092A1 (en) 2019-08-01

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